GB 14 - 1976 Cup head square neck bolts with large head

Unit: 毫米(mm)

Thread Size
d

M10

P	Pitch
d_k	Nominal Size
	max
	min
k	Nominal Size
	max
	min
s	Nominal Size
	max
	min
k₁	Nominal Size
	max
	min

1.00	1.25	1.50
14	18	23
15.10	19.10	24.30
13.30	17.30	22.16
3	4	5
3.48	4.48	5.48
2.70	3.60	4.60
6	8	10
6.30	8.36	10.36
5.84	7.80	9.80
4	5	6
4.40	5.40	6.40
3.60	4.60	5.60

per 1000 units ≈ kg(7.85kg/cm3)

Thread Length
b

GB /T 14 - 2013

Mushroom Head Square Neck Bolts

GB /T 14 - 1998

Cup head square neck bolts with large head

GB /T 14 - 1988

Cup Head Square Bolts With Large Head - Grade C

DIN 603 - 2017

Cup Head Square Neck Bolts
Suppliers(3)

DIN 603 - 2010

Mushroom head square neck bolts
Suppliers(3)

DIN 603 - 1981

Mshroom head square neck bolts
Suppliers(3)

DIN 11015 - 1995

Agricultural Machinery - Flat Countersunk Square Neck Bolts With Short Square

ISO 8677 - 1986

Cup Head Square Neck Bolts With Large Head-Product Grade C

JIS B 1171 (AT1) - 1996

Cup head square neck bolts（Large size）[Table 1]

Q 192B

Cup head square neck bolts with large head

ASME/ANSI B 18.5 - 2012

Step Bolts,(Inch Series)

ASME/ANSI B 18.5 - 2008

Step Bolts

ASME/ANSI B 18.5.2.3M - 1998

Metric round head square neck bolts with large head

UNI 5732 - 1965

Cup square bolts with hexagon nut - ISO metric coarse thread - Finish C

UNI 5731 - 1965

Cup square bolts and bolts with square nut - ISO metric coarse thread - Finish C

NF E 27-351 - 1969

Round Head Square Neck Bolts - JAPY Type

BS 4933 - 1973

Metric Cup Square Bolts

CNS 4424 - 1981

Cup Square Bolts

CNS 4425 - 1981

Cup Square Bolts With Enlarged Head For Looms

CNS 4574 - 1981

Cover Bolts Type A

GOST 7802 - 1981

Increased cup head square shoulder bolts, product grade C

ASME B 18.5 - 2012 (2017)

Step Bolts,(Inch Series)

GB	GB /T 14
ISO	ISO 8677
DIN	DIN 603
ASME/ANSI	ANSI/ASME B 18.5.2.3M
UNI	UNI 5732
NF	NF E 27-351
Some of the above standards may be approximate equivalent. If there is any objection, the standard original shall prevail.